PATIENT CHARACTERISTICS: Age: 18 and over Performance status: Karnofsky 70-100% Life expectancy: Not specified Hematopoietic: Platelet count at least 100,000/mm3 Hemoglobin at least 10 g/dL WBC at least 3,500/mm3 OR Granulocyte count at least 2,000/mm3 Hepatic: Bilirubin no greater than 3 times upper limit of normal (ULN) AST and ALT no greater than 3 times ULN Renal: Creatinine less than 2 times ULN Cardiovascular: Normal EKG No prior myocardial infarction No arteriovenous block greater than I, complete hemiblock, hypertrophy, or relevant arrhythmia No uncontrolled hypertension (diastolic at least 100 mmHg) or hypotension (systolic no greater than 90 mmHg) No prior episodes of syncope No prior cardiac disease or significant risk factors for coronary artery disease, unless there is no evidence of myocardial ischemia on exercise thallium scan or other exam (e.g., exercise EKG or dobutamine stress echocardiography) or there is no evidence of significantly impaired left ventricular function on echocardiographic exam Normal thallium scan if patient is at least 65 years old Pulmonary: Normal chest x-ray No pulmonary congestion, pleural effusions, pulmonary fibrosis, or significant emphysema Other: No concurrent infection No clinical evidence of immunosuppression No known hypersensitivity to study drug, interleukin-2, Tween-80, or human immunoglobin No other condition that would preclude study No Addison's disease No Crohn's disease Not pregnant or nursing Negative pregnancy test Fertile patients must use effective contraception during and for 1 month after study Thyroid-sensitizing hormone no greater than 4.7 mU/L